Musical instrument



FIG. 1 is a front perspective view of a musical instrument showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is the side view opposite to FIG. 4;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

It is understood that the appearance within the boundaries of the various unshaded circular and rectangular apertures forms no part of the claimed design. 

The ornamental design for a musical instrument, as shown and described. 